The years before World War I were spent in patent litigation for aviation pioneers Glenn Curtiss and Orville and Wilbur Wright.
The collection consists of United States, Canadian, Mexican and other foreign patents issued to William E. Woodard from 1909 to 1949. The patents are for Woodard's developments in steam and electric locomotive design.
A British patent issued to Alexander Melville Clark for an improved process for preventing the accumulation of carbon in retorts used for the distillation of carbureted hydrogen. There is a wax seal attached to the end of the patent.
A New York bookseller, Warshaw assembled this collection over nearly fifty years. The Warshaw Collection of Business Americana: Patents forms part of the Warshaw Collection of Business Americana, Subseries 1.1: Subject Categories. The Subject Categories subseries is divided into 470 subject categories based on those created by Mr. Warshaw. These subject categories include topical subjects, types or forms of material, people, organizations, historical events, and other categories. An overview to the entire Warshaw collection is available here: Warshaw Collection of Business Americana
Madison Cooper was an inventor and manufacturer of refrigerating systems in the early twentieth century. Cooper received several patents for his refrigeration inventions, including several refrigerating apparatuses, an air-circulating system, a process for preventing the formation of frost on refrigerating surfaces and a refrigeration train car. The collection spans 1900-1963 and includes his United States and foreign patents, his publications related to refrigeration, and a few documents and photographs related to Cooper and the Madison Cooper Company.
This accession consists of records created and/or maintained by Carolyn Kinder Carr, Deputy Director, in regards to the Patent Office Building renovation and enhancement. Materials include correspondence, memoranda, meeting minutes, committee recommendations, planning documents, surveys, notes, picture postcards, and black-and-white slides.
This collection includes an English patent paper #2126 for improved vulcanizable water-proof gum, 1873, to Benjamin Joseph Barnard Mills; a U.S. patent paper #151,109 for improvement in the art of manufacturing horseshoes, 1874; and an English patent paper #1194 for improvement in street-lighting apparatus.